Turbine pump



July 14, 1931'. o s 1,814,019

TURBINE PUMP Filed July 28. 1928 3 Sheets-Sheet 1 I Z s 4 I 1 k i a N INNENTOR ATTORNEY July 14, 1931. Yoss 1,814,019

TURBINE PUMP Filed July 28, 1928 I5 Sheets-Sheet 2 I/I/I IIIIII I'NVENTOR ATTORNEY 3 Sheets-Sheet 3 .Zbzazzaelloss INVENT R ATT RNEY Patented July 14, 1931 UNITED STATES PATENT (OFFICE EMANUEL YOSS, OF RICHMOND, VIRGINIA 1 TURBINE PUMP Application filed July 28, 1928. Serial No. 295,989.

cular shape in cross section, the chambers being parallel to each other and to the axis of the device, with means for so forming the grooves and so arrangin the blades that a spiral motion is imparte to ,the fluid as it passes from the inlet chamber to the outlet chamber and a rotary motion is imparted to the fluid in each chamber.

Another object of the invention is to so arrange the parts that when the device is used as an air pump, and a certain amount of liquid is placed in the device, the centrifugal action of the impeller on the liquid in the inlet chamber will cause the liquid to form vacuum spaces in the pockets which act to draw air into the same so that this air will be caused to flow from the inlet chamber to the outlet chamber, where the liquid, under the'action of centrifugal force, will cause the air to leave the pockets and thus pass off through the outlet.

This invention also consists in certain other features of construction and in the combination and arrangement of the seved claims.

drawings wherein like characters denote like or corresponding parts throughout the several views, and 1n which Figure 1 is a front view of the device, with parts broken away.

Figure 2 is a section on line 22 of Fig- &

ure 1.

Figure 3 is a section on line 33 of Figure 1. Figure 4 is a view lookinginto the cas- %igure 5 is a face view of the impeller, looking toward the small end thereof.

Figure 6 is an edge view of the impeller.

view showing the cross sectional shape of the grooves in the impeller and casing.

In these views, the numeral 1 indicates a casing forming a chamber of frusto-conical shape and 2 indicates a cover plate for en- 05 closing the chamber of the casing, this coverplate being bolted to the casing, as shown. A shaft 3 passes through the chamber of the casing and has one end journaled in the small end of the'casing, as shown at 4, and 7 its other end is journaled in the center of the cover plate, as shown at 5. 'An impeller or rotor6 of frusto-conical shape is fastened and with the axis of the dew'ce, with the, 80

lower inner portions of the chambers having substantially elliptical-shaped openings 9 therein which lace the chambers 1n communication with t e ends of a concentric groove 10 formed in the interior wall of the casing 35 substantially midway the ends of the frustoconical chamber formed by the casin This groove is of substantiall semi-e liptical form with its larger perip eral portion being formed with a curvature of less radius Figure 7 is a diagrammatic sectional view. Flgure 8 is an enlarged detail sectional The than its smaller peripheral portion, as clearly shown in Figure 8. As shown in Flgure 7, the smaller peripheral portion of this groove merges into the lower inner walls of the openings 9.

' shown, with their outer edges flush with the sloping surface of the impeller. As shown, the blades are set in the groove with their edges at a retarded angle of substantially twelve degrees (12) at the large diameter of the groove and they are also set at an advanced angle in the direction of rotation of the impeller. As shown in Figure 7, the groove 10 extends substantially two-thirds around the circumference of the interior wall of the casing, with that portion of the casing between the inlet and outlet chambers solid so as to leave a sealing ortion between said inlet and outlet cham ers.

A small casing 13 has an elbow part 14 connected with each inlet and outlet chamber.

As shown in Figure 3, portions of the walls of each chamber 7 and 8 are in alignment with portions of the groove 11 so that a portion of said groove forms a portion of each chamber and thus the blades pass through the chambers during the rotation movement of the impeller.

From the foregoing it will be seen that during the rotation of the impeller, the blades thereon will set up a rotary motion of the liquid in the inlet and outlet chambers, as shown by the arrows in Figure 7,

and the centrifugal action will cause the liquid in the inlet chamber to enter the 1pockets formed by the blades of the impel er as the pockets move to the opening 9 of said inlet chamber and then this liquid is forced by centrifugal action from the pockets as the pockets advance through the opening 9, so that vacuum spaces will occur in the pockets, which will act to draw air into the same when the device is used as an air pump, it being understood that in this case, suflicient liquid is placed in the device to fill the cavities thereof. As the'pockets containing the air pass within the grooves of the device, the liquid and air is given a spiral move- -ment through the grooves, as shown by the arrows in Figures 7 and 8, until the fluid reaches the outlet chamber. The liquid in this chamber is also rotating, as shown by the arrows in Figure 7, and as the pockets enter the chamber, the centrifugal action of the liquid will cause said liquid to enter the pockets and force the air therefrom and thus the air will pass through the outlet and the pockets will be filled with liquid and this liquid will pass into the inlet chamber as the impeller revolves. As shown in Figures 7 and 8, the centrifugal action will force the fluid from the pockets into the groove 10, and the peculiar shape of this groove will give the fluid a spiral motion and return it to the pockets and thus the fluid will be forced from the inlet to the outlet with a spiral motion of considerable force.

Substantially the same action takes place when the pump is used as a liquid pump, but in this case as the liquid is under a head, the pockets will be filled with liquid as the impeller passes from the inlet chamber into the grooved part of the device and this liquid will be given a spiral forward movement through the grooves to the outlet chamber.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is: 1. A pump of the class described comprismg a casing having a frusto-conical chamber therein, an impeller of frusto-conical shape located in the chamber, said impeller havin a concentric groove in its peripheral part, blades in the groove forming pockets, said groove being of substantially triangular shape in cross section with one wall arallel with the axis of the impeller and the other at rightangles to the axis, the internal wall of the casing having a'concentrically arranged groove therein of substantially semi-elliptical shape in cross section fopposite and in communication with the groove in the impeller, inlet and outlet chambers with which the ends of the groove in the casing are in communication, said chambers being arranged parallel with each other and with the axis of the device and of cylindrical formation, the intersection of the groove in the casing with the inlet and outlet chambers forming elliptical shaped ports which place said chambers in communication with the groove whereby theblades will enter the chambers and act on the fluid therein.

2. A pump of the class described comprising a casing having a frusto-conical chamber therein, an impeller of frusto-conical shape located in the chamber, said impeller having a concentric groove in its peripheral part, blades 1n the groove forming pockets, said groove being of substantially triangular shape in cross section with one wall parallel with the axis of the impeller and the other at rightangles to the axis, the internal wall of the casing having a concentrically arranged groove therein of substantially semi-elliptical shape in cross section opposite and incommunication with the groove in the impeller, inlet and outlet chambers with which the ends of the groove in the casing are in communication, said chambers being arranged parallel with each other and with the axis of the device and of cylindrical formation, the blades in the impeller being tangentially arranged with their outer edges at a retarded angle at the larger diameter of the groove and said blades bein set at an advanced angle in the direction 0 rotation. a

, 3. A pump of the class described'comprising a casing having a frusto-conical chamber therein, an impeller of frusto-conical shape located in the chamber, said impeller having anannular groove in its peripheral part, blades in the groove forming pockets, the internal wall of the casing having an annular groove therein opposite and in communication with the groove in the impeller,

inlet and outlet chambers with which theends of the groove in the casing are in communication, said chambers having-their axes arranged parallel with each other and with the axis of the device and of cylindrical formation.

' 4. A pump of the class described comprising a casing having a frusto-conical chamber therein, an impeller of frusto-conical shape located inthe chamber, said impeller havmgla concentric groove in its peripheral P said groove being of substantially triangular shape in cross section, with one wall parallel with the axis of the impeller and the other at rightangles to the axis, the internal wall of the casing having a concentric groove therein opposite and in communication with the groove in the impeller, inlet and outlet chambers with which the ends of the groove in the casing are in communication, said chambers being. of cylindrical formation and having their axes arranged parallel to 'the axis of the device, with portions of the side and bottom walls of each chamber in alignment with portions of the walls of the groove in the impeller whereby said por- {)ipn's of the groove form a part of the chamr.. 5. A turbine pump comprising a casing having a substantially conical shaped chamberthereinhaving a concentric groove in its interior wall, a substantially conical shaped impeller rotatably mounted in the casing and having a concentric groove in its periphery arranged opposite and in communication with the first mentioned oove,

blades carried by the impeller and dividing ades in the groove forming pockets, 

